Magnetic attraction type suspension device and suspension body thereof

Abstract

The invention discloses a magnetic attraction type suspension device and a suspension body thereof. The suspension body comprises a shell provided with a vertical transmission shaft and a guide matching part; the magnetic part is in matched connection with the transmission shaft in a linear displacement manner in the axial direction of the transmission shaft, and is provided with a guide matching part which forms a shape matching relationship with the guide matching part of the shell; therefore, the linear displacement relative to the shell along the axial direction of the transmission shaft is realized through the rotary driving of the transmission shaft and the shape matching of the guide matching part of the shell and the guide matching part of the magnetic piece. According to the magnetic attraction type suspension device, the lifting mechanism capable of being driven by the common motor is arranged in the suspension body, so that automatic ascending, descending and / or adsorption positioning of the suspension body relative to the magnetic attraction head are simply and reliably achieved.

Description

Technical Field

[0001] The present invention generally relates to a magnetic attraction type suspension device, and more particularly to a suspension body thereof. Background Art

[0002] Existing magnetic levitation devices usually include a levitator and a suspended body. The levitator is generally in the form of a base or a hanger, and the suspended body can be in various suitable forms such as a globe, a Bluetooth speaker, a moon lamp, a flower pot, an ornament, etc. CN112228734A, CN112087163A, CN110748563A, CN102315805A, CN102570927A, CN207202600U, etc. all disclose that a lifting mechanism is set in the levitator base of a magnetic repulsion type levitation device to realize automatic suspension / landing of the suspended body. Setting a lifting mechanism in the levitator base is bound to suffer from the dual constraints of space and cost. The suspension of the suspended body of the magnetic attraction type levitation device relative to the magnetic attraction head (levitator) is currently carried out manually.

[0003] In the Chinese patent application CN2023103172526 previously filed by the inventor team, improvements were made to the structure of the suspension for the first time, thereby enabling automatic suspension of the suspension relative to a conventional levitator. Summary of the invention

[0004] The object of the present invention is to provide a suspension body for a magnetic suspension device, which can automatically rise and fall relative to a conventional magnetic suction head.

[0005] According to a first aspect of the present invention, there is provided a suspension body for a magnetic suspension device, comprising:

[0006] A housing is provided with a vertical transmission shaft and a guide fitting portion; and

[0007] The magnetic component can be linearly displaced along the axial direction of the transmission shaft to form a mating connection with the transmission shaft, and is provided with a guide fitting portion that forms a shape-fitting relationship with the guide fitting portion of the shell. The magnetic component can be linearly displaced relative to the shell along the axial direction of the transmission shaft through the rotational drive of the transmission shaft and the shape matching between the guide fitting portion of the shell and the guide fitting portion of the magnetic component.

[0008] According to one embodiment of the suspension of the present invention, the guiding fitting portion of the shell may include a vertical thread segment, and the guiding fitting portion of the magnetic component also includes a vertical thread segment. The thread segment of the guiding fitting portion of the shell and the thread segment of the guiding fitting portion of the magnetic component form a threaded fitting relationship and can rotate relative to each other around the transmission shaft, while the transmission shaft of the shell and the magnetic component are relatively non-rotatable.

[0009] In the above embodiments, one of the threaded section of the guide matching portion of the housing and the threaded section of the guide matching portion of the magnetic member may have an internal thread, and the other may have an external thread. For example, the threaded section of the guide matching portion of the housing has an internal thread, and the threaded section of the guide matching portion of the magnetic member has an external thread.

[0010] According to another embodiment of the suspension of the present invention, the guiding fitting portion of the shell may include one of a vertical guiding rib and a vertical guiding groove, and the guiding fitting portion of the magnetic member includes the other of the vertical guiding rib and the vertical guiding groove, wherein the guiding rib is received in the guiding groove in a shape-fitting manner; the transmission shaft is formed with an external threaded portion, and the magnetic member is formed with an internal threaded portion, and the two form a threaded fitting relationship and can rotate relative to each other.

[0011] The suspension of the present invention may also include a motor fixedly mounted on the housing for driving the transmission shaft to rotate. The motor has a rotating output shaft that is dynamically connected to the transmission shaft, and the rotating output shaft of the motor and the transmission shaft may be coaxially arranged or perpendicularly arranged.

[0012] The suspension of the present invention may further include a limit switch and a control circuit arranged on the housing, for controlling the displacement of the magnetic member relative to the housing. The motor is preferably a bidirectional motor.

[0013] The suspension of the present invention can be designed as a globe, a Bluetooth speaker, a lamp, a camera, an aromatherapy, an ultrasonic atomizer or a humidifier, etc. In addition, the shell of the suspension can be a closed or open shell, such as a transparent or opaque sphere or box.

[0014] According to another aspect of the present invention, a magnetic suspension device is provided, which includes a levitator in the form of a magnetic head and the above-mentioned suspension body, wherein the magnetic part of the suspension body can be stably suspended at a set position below the magnetic head.

[0015] According to another aspect of the present invention, there is also provided a method for realizing automatic lifting of a suspended body relative to a magnetic suction head by using the above-mentioned magnetic suction suspension device, comprising:

[0016] The magnetic suction head is suspended on the hanger;

[0017] After the magnetic part of the suspension is adjusted to an adsorption and fixing position relative to the shell, the suspension is adsorbed and fixed to the magnetic suction head from the bottom;

[0018] Adjusting the magnetic part of the suspension body relative to the shell to a critical suspension position and starting the magnetic suction head to keep the magnetic part at a set suspension height relative to the magnetic suction head; and

[0019] The shell of the suspension is displaced downward relative to the magnetic member until the suspension is at a position of maximum suspension distance relative to the magnetic suction head.

[0020] The method according to the present invention may further include:

[0021] When the suspension is at a maximum suspension distance relative to the magnetic head, the shell of the suspension is moved upward relative to the magnetic member until the shell of the suspension contacts the magnetic head; and

[0022] The magnetic part of the suspension is moved upward relative to the shell, and the magnetic suction head is stopped at the same time, until the magnetic part is adjusted to an adsorption fixed position.

[0023] According to the method of the present invention, the displacement of the magnetic member of the suspension relative to the housing is preferably achieved by driving the transmission shaft with a bidirectional motor.

[0024] The magnetic suspension device of the present invention provides a lifting mechanism driven by a common motor in the suspension body, thereby realizing the automatic rise, fall and / or adsorption positioning of the suspension body relative to the magnetic suction head in a simple and reliable manner. This not only has an extremely strong visual impact, but also does not require changing the structure of the existing magnetic suction head. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a perspective schematic diagram of a magnetic suspension device;

[0026] Figure 2 is a cross-sectional schematic diagram of a magnetic suspension device according to an embodiment of the present invention;

[0027] Figure 3 yes Figure 2 An exploded perspective schematic diagram of the suspension shown;

[0028] Figure 4 for Figure 2 A schematic cross-sectional view of the suspended body shown rising to a critical suspension state;

[0029] Figure 5 yes Figure 4 A cross-sectional schematic diagram showing that the suspension is stably adsorbed on the magnetic suction head;

[0030] Figure 6 is Figure 2 A perspective schematic diagram of a variation of the internal structure of the suspension shown;

[0031] Figure 7 Then Figure 6 an exploded perspective schematic diagram of the variation shown;

[0032] Figure 8 A perspective schematic diagram of a variation of the rotational connection structure between the transmission shaft and the magnetic member; and

[0033] Fig. 9 and 10 The diagram is a perspective view of the suspended body being designed as a camera and a Bluetooth speaker respectively. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the embodiments and drawings. Those skilled in the art should understand that the embodiments and drawings are only for a better understanding of the present invention and are not intended to be limiting in any way.

[0035] The magnetic levitation device generally includes a levitator (or also referred to as a "magnetic levitation support system or mechanism") and a suspension body (or also referred to as an "object to be suspended"). The suspension body can be stably suspended in the air through the levitator. Its specific structure and working principle are well known in the art and will not be described in detail here for the sake of saving space; for example, see CN100544183C, CN105790641B, CN112086312A, US7505243B2 and CN2561163Y, etc., all of which are introduced here by reference. The levitator usually takes the form of a base or a hanger, in which a magnetic component (such as a permanent magnetic ring core magnet), a sensor (such as a Hall sensor) and a control element such as an electromagnetic coil are provided. The suspension body is provided with a magnetic part such as a permanent magnetic cylindrical magnet. In addition, the entire content of Chinese patent application CN202310317252.6 is also introduced here by reference.

[0036] Figure 1 It is a perspective schematic diagram of a magnetic suspension device. As shown in the figure, this magnetic suspension device includes a magnetic head 20 and a suspension body LO installed on a bracket 2. The bracket 2 is in the form of a hanger to suspend the magnetic head 20. A magnetic attraction force will be generated between the magnetic part or magnet set on the upper part or top of the suspension body LO and the magnetic parts such as the iron core set in the magnetic head 20. When the distance between the two is adjusted to a suitable size (set distance), the gravity of the suspension body LO will be balanced by the magnetic attraction force, so that it will be in a suspended balance position relative to the magnetic head 20. The control elements in the magnetic head 20, such as coils, sensors, etc., will control this suspension balance in real time.

[0037] Figure 2 It is a cross-sectional schematic diagram of a magnetic suspension device according to an embodiment of the present invention, wherein the suspension body LO is in a completely suspended state relative to the magnetic suction head 20 used as a levitator. The suspension body LO shown has a spherical closed shell 1, and the shell 1 can form a globe or a lampshade, etc. A cylindrical structure 10 is fixedly provided at the top of the shell 1, which extends downward into the interior of the shell 1. The cylindrical structure 10 can be formed integrally with the shell 1, or it can be fixed to the shell 1 in any suitable manner. For the sake of simplicity, only the coil 21 as a control element is shown in the magnetic suction head 20.

[0038] Figure 3 yes Figure 2 The exploded perspective schematic diagram of the suspension LO is shown. Figure 2 and 3As clearly shown, the cylindrical structure 10 comprises a cylindrical portion 13 of larger diameter and a cylindrical portion 12 of smaller diameter arranged concentrically and a mounting seat 11 at the lower end. The cylindrical portion 12 is provided with an internal thread.

[0039] The common bidirectional motor 14 is fixedly mounted on the mounting seat 11, and its rotation output shaft extends vertically upward and engages with the transmission shaft 15 rotatably arranged relative to the mounting seat 11 to drive the transmission shaft 15 to rotate together. The upper end of the rotation output shaft of the motor and the lower end of the transmission shaft 15 are respectively provided with shape matching structures so that the two are coaxial and non-rotatably engaged with each other.

[0040] The magnetic member 30 comprises a top cylindrical magnet and a threaded rod 31 with external threads fixed on the magnet and extending downward. The magnet is located in the cylindrical portion 13, and the threaded rod 31 extends downward into the cylindrical portion 12 and forms a threaded matching relationship therewith.

[0041] The threaded rod 31 is also formed with a vertical inner hole 32 for slidably receiving the transmission shaft 15. The outer contour of the transmission shaft 15 forms a corresponding shape match with the inner hole 32, so that the transmission shaft 15 can drive the threaded rod 31 and thereby drive the magnetic member 30 to rotate with it, and the transmission shaft 15 can also slide up and down relative to the inner hole 32 of the magnetic member 30. In this way, when the rotating output shaft of the motor 14 rotates and drives the transmission shaft 15 to rotate accordingly, the transmission shaft 15 also drives the magnetic member 30 to rotate accordingly; due to the thread matching relationship between the external thread of the threaded rod 31 of the magnetic member 30 and the internal thread of the cylindrical portion 12 of the cylindrical structure 10, the threaded rod 31 of the magnetic member 30 will be displaced upward or downward relative to the cylindrical structure 10 along the direction of the transmission shaft 15 during the rotation process relative to the cylindrical structure 10, thereby realizing the up and down displacement of the shell 1 of the suspension LO relative to the magnetic member 30.

[0042] Figure 4 for Figure 2 The cross-sectional view of the suspension body LO rising to a critical suspension state is shown, at which time the magnetic member 30 is at the lowest position or the set suspension height. Figure 5 yes Figure 4 The cross-sectional view of the suspension LO being further stably adsorbed on the magnetic head 20 is shown. At this time, the position of the magnetic member 30 is slightly moved upward (reaching the adsorption fixed position) to enhance the adsorption force of the magnetic head 20 on it.

[0043] like Figure 5 As shown, when the suspension LO is stably adsorbed on the magnetic head 20, the motor 14 is started to move the magnetic member 30 downward to Figure 4The suspension height is set as shown, and the magnetic head 20 is started. Due to the real-time adsorption control of the magnetic head 20, the magnetic part 30 will be stably suspended at the set suspension height or suspension balance position relative to the magnetic head 20. Next, the motor 31 is controlled to rotate in the reverse direction. Since the magnetic part 30 has been stably maintained at the set suspension height or suspension balance position by the magnetic head 20, the cylindrical structure 10 or the shell 1 will drop relative to the magnetic part 30 until Figure 2 The position shown or the suspension body LO is at the maximum suspension distance relative to the magnetic suction head 20. Thereafter, the motor 14 can be controlled to rotate in the reverse direction again to raise the housing 1 and the cylindrical structure 10 to Figure 4 Finally, the motor 14 can be controlled to rotate in the reverse direction again and the magnetic head 20 can be stopped. Figure 5 When the motor is stopped at the raised position shown, the suspension LO will be stably adsorbed on the magnetic head 20.

[0044] The cylindrical structure 10 may also be provided with a limit switch and a control circuit to start and stop the motor 14 accordingly, so that the suspension LO can be in a certain position. Figure 2 , Figure 4 and Figure 5 Status shown.

[0045] Figure 6 yes Figure 2 A perspective schematic diagram of a variation of the internal structure of the suspension shown; Figure 7 for Figure 6 Schematic diagram of the exploded perspective of the variant shown. Figure 6 and 7 As clearly shown, the cylindrical structure 10 includes a cylindrical portion 13' and a mounting seat 11 at the lower end. A plurality of evenly distributed vertical guide ribs 16 are formed on the inner circumferential wall of the cylindrical portion 13'. The motor 14 is fixedly mounted on the mounting seat 11, and its rotating output shaft extends vertically upward and engages with a transmission shaft 15' provided with an external thread to drive the transmission shaft 15' to rotate together. The upper end of the transmission shaft 15' is optionally rotatably arranged on the cylindrical structure 10.

[0046] The outer circumference of the magnetic member 30' is formed with a plurality of vertical guide grooves 36 for receiving the corresponding guide ribs 16 on the inner circumferential wall of the cylindrical portion 13'. A vertical through hole 32' is formed in the central portion of the magnetic member 30'. An internal thread is provided on at least a portion of the inner circumferential wall of the through hole 32', which forms a threaded mating relationship with the external thread of the transmission shaft 15'. The magnetic member 30' can be made of a magnet.

[0047] When the rotating output shaft of the motor 14 rotates and drives the transmission shaft 15' to rotate accordingly, due to the matching relationship between the guide groove 36 and the guide rib 16, the magnetic member 30' is not rotatable relative to the cylindrical structure 10. However, due to the thread matching relationship between the magnetic member 30' and the transmission shaft 15', the two are relatively rotatable. In this way, when the transmission shaft 15' rotates, the magnetic member 30' will move up and down around the transmission shaft 15' along the guide rib 16 relative to the cylindrical structure 10, thereby realizing the up and down displacement of the cylindrical structure 10 (or the shell 1 of the suspension LO) relative to the magnetic member 30'.

[0048] In the above structure, the rotary output shaft 32 of the motor 14 is coaxially coupled with the transmission shaft 15 or 15'; however, the rotary output shaft of the motor 14 may also be coupled with the transmission shaft perpendicularly via a gear transmission mechanism.

[0049] exist Figure 6 and 7 In the modified structure shown, the rotation connection between the transmission shaft 15' and the magnetic member 30' can also be adopted Figure 8 The reciprocating thread structure shown in FIG. Figure 8 As shown, the outer periphery of the transmission shaft 15" is provided with left and right threads and a transition reversing portion, and the magnetic member 30" is provided with a positioning groove 38. By means of a toggle rod 37 provided between the magnetic member 30" and the transmission shaft 15", the transmission shaft 15" can be made to rotate continuously clockwise, for example, to drive the magnetic member 30" to rotate clockwise within a certain range and then drive it to rotate counterclockwise within a certain range; that is to say, the unidirectional continuous rotation of the transmission shaft 15" can enable the magnetic member 30" to switch between bidirectional rotation as needed. In this case, the motor 14 can be replaced from a bidirectional motor to a unidirectional motor.

[0050] Suspension LO can be designed into various products according to needs. Fig. 9 The suspension LO shown also has a substantially spherical housing 1 , in the center of which a camera 19 is arranged. Fig.10 The suspension LO shown has a substantially spherical shell 1, the bottom of which is provided with a Bluetooth speaker 18. The suspension LO may also be provided with electrical devices such as an LED light source, an ultrasonic atomizer, and a heater, so that it may also be designed as a lamp, an aromatherapy device, an atomizer, a humidifier, and the like.

[0051] In addition, the suspension LO can also be provided with wireless or wired charging equipment to power the electrical equipment therein. For example, in the case of wireless power supply, a wireless power receiving coil can be provided in the suspension LO to communicate with the magnetic suction head 20 or Figure 1 The wireless power transmission coil arranged in the base is matched.

[0052] Those skilled in the art should understand that the above illustrated embodiments are only used to better understand the present invention and are not used for any limiting purpose. For example, the above directional terms are only for the accompanying drawings. In addition, the shell 1 of the suspension LO of the present invention is not limited to such a spherical shell structure, and other shapes such as a square box or any other suitable closed or semi-closed or open shape can also be used. In addition, the shell 1 can be made of transparent, translucent or opaque materials.

Claims

1. A suspension body for a magnetic suspension device, comprising: The housing is provided with a vertical transmission shaft and a guide matching portion; as well as The magnetic component can be linearly displaced along the axial direction of the transmission shaft to form a mating connection with the transmission shaft, and is provided with a guide fitting portion that forms a shape-fitting relationship with the guide fitting portion of the shell. The magnetic component can be linearly displaced relative to the shell along the axial direction of the transmission shaft through the rotational drive of the transmission shaft and the shape matching between the guide fitting portion of the shell and the guide fitting portion of the magnetic component.

2. The suspension according to claim 1, wherein the guide fitting portion of the shell includes a vertical thread segment, and the guide fitting portion of the magnetic component also includes a vertical thread segment, the thread segment of the guide fitting portion of the shell and the thread segment of the guide fitting portion of the magnetic component form a thread fitting relationship and can rotate relative to each other around the transmission shaft, while the transmission shaft of the shell and the magnetic component are relatively non-rotatable. 3 . The suspension according to claim 2 , wherein one of the threaded section of the guide fitting portion of the housing and the threaded section of the guide fitting portion of the magnetic member has an internal thread, and the other has an external thread.

4. The suspension according to claim 1, wherein the guide fitting portion of the shell includes one of a vertical guide rib and a vertical guide groove, and the guide fitting portion of the magnetic member includes the other of the vertical guide rib and the vertical guide groove, wherein the guide rib is received in the guide groove in a shape-fitting manner; the transmission shaft is formed with an external threaded portion, and the magnetic member is formed with an internal threaded portion, and the two form a threaded fitting relationship and can rotate relative to each other.

5. The suspension according to claim 1, further comprising a motor fixedly mounted on the housing, for driving the transmission shaft to rotate.

6. The suspension according to claim 5, wherein the motor has a rotating output shaft dynamically connected to the transmission shaft, and the rotating output shaft of the motor is arranged coaxially with the transmission shaft or perpendicularly to each other.

7. The suspension according to claim 5, further comprising a limit switch and a control circuit arranged on the shell, for controlling the displacement of the magnetic member relative to the shell.

8. The suspension of claim 7, wherein the motor is a bidirectional motor.

9. The suspension according to claim 1, wherein the suspension is designed as a globe, a Bluetooth speaker, a lamp, a camera, an aromatherapy, an ultrasonic atomizer or a humidifier.

10. A magnetic suspension device, comprising a levitator in the form of a magnetic head and a suspension body according to any one of claims 1 to 9, wherein the magnetic part of the suspension body can be stably suspended at a set position below the magnetic head.

11. A method for realizing automatic lifting of a suspended body relative to a magnetic suction head by using the magnetic suction suspension device of claim 10, comprising: The magnetic suction head is suspended on the hanger; After the magnetic part of the suspension is adjusted to an adsorption and fixing position relative to the shell, the suspension is adsorbed and fixed to the magnetic suction head from the bottom; The magnetic part of the suspension is adjusted relative to the shell to a critical suspension position and the magnetic suction head is started to work so as to keep the magnetic part at a set suspension height relative to the magnetic suction head; as well as The shell of the suspension is displaced downward relative to the magnetic member until the suspension is at a position of maximum suspension distance relative to the magnetic suction head.

12. The method according to claim 11, further comprising: When the suspension is at a maximum suspension distance relative to the magnetic suction head, the shell of the suspension is moved upward relative to the magnetic member until the shell of the suspension contacts the magnetic suction head; as well as The magnetic part of the suspension is moved upward relative to the shell, and the magnetic suction head is stopped at the same time, until the magnetic part is adjusted to an adsorption fixed position.

13. The method according to claim 11, wherein the displacement of the magnetic member of the suspension relative to the housing is achieved by driving a transmission shaft using a bidirectional motor.

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